EP3231524A1 - Production method for a heat exchanger with lamellae on tubes, and a heat exchanger and lamella - Google Patents
Production method for a heat exchanger with lamellae on tubes, and a heat exchanger and lamella Download PDFInfo
- Publication number
- EP3231524A1 EP3231524A1 EP17163448.8A EP17163448A EP3231524A1 EP 3231524 A1 EP3231524 A1 EP 3231524A1 EP 17163448 A EP17163448 A EP 17163448A EP 3231524 A1 EP3231524 A1 EP 3231524A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- punching
- stiffening
- production
- heat exchanger
- tools
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 80
- 241000446313 Lamella Species 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 38
- 230000000750 progressive effect Effects 0.000 claims abstract description 17
- 239000002131 composite material Substances 0.000 claims abstract description 12
- 238000004080 punching Methods 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 12
- 239000013529 heat transfer fluid Substances 0.000 claims description 10
- 230000009466 transformation Effects 0.000 claims description 8
- 238000000844 transformation Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/06—Making more than one part out of the same blank; Scrapless working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/10—Incompletely punching in such a manner that the parts are still coherent with the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
- B21D53/085—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal with fins places on zig-zag tubes or parallel tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/255—Enclosures for the building material, e.g. powder containers
- B29C64/259—Interchangeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
- F28F1/128—Fins with openings, e.g. louvered fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
- F28F1/325—Fins with openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/06—Reinforcing means for fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/08—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes pressed; stamped; deep-drawn
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- the invention relates to a manufacturing method for a heat exchanger with spaced, profiled fins for common ribbing of several tubes, which is intended to a first heat transfer fluid (eg air) along the surface of the fins and a second heat transfer fluid (eg water) in the tubes respectively.
- a corresponding finned tube heat exchanger is off DE 10 2010 023 684 A1 known.
- manufacturing processes are off US 2003/0188852 A1 or US 2001/0029767 A1 known.
- the slats are usually made of aluminum or copper.
- the tubes are usually made of copper. Copper is considered a safe pipe material for the water supply, it is an excellent conductor of heat, pressure-resistant and nevertheless light. Aluminum is also an excellent conductor of heat and also corrosion-resistant.
- profiled lamellae are punched from the belt and applied to pipes. A hydraulic expansion ensures a tight fit and thus safe heat transfer.
- the distances from slat to slat are optimized according to the required heat output and geometry of the slat. There are many possibilities for easy use, such as convectors, Cooling coil for silent cooling and other air / water heat exchangers in room air technology.
- the invention is to manufacture a blade of a heat exchanger, which later at a certain distance from each next lamella is arranged in parallel in the heat exchanger, for common ribbing of several tubes.
- the slats are transformed according to the invention in a follow-on composite with several individual tools. It is now particularly challenging that the follow-on composite provides for a shaping of regularly rising elevations and depressions running transversely to the direction of production, particularly alternately rising and falling waves. Exactly with this arrangement of a wave structure, production problems occur in the prior art.
- the follow-on composite now forms at least one stiffening surface track, at least roughly along the production direction, for controlling material stresses according to the invention, in addition to the regular lamellar structure.
- a plurality of individual stiffening surfaces can form one or more stiffening tracks which, in the case of the particularly preferred multiple stiffening surfaces, interact with interruptions in the direction of production. Consequently, it is possible to adequately stiffen the lamella in order to ensure a tailor-made Lammelenbahn layer in the following composite, preferably in the next individual dies of the progressive composite, and also for subsequent assembly steps.
- a web material preferably exits from its flat basic condition at a front end into a road in a production direction as punching sequences of consecutive individual tools of a progressive composite in order to obtain contouring in at least two such individual tools.
- punching or punching sequence are intended to be used here for any form of forming, not exclusively for a process separating a material.
- the web material is seen in the direction of production taken at least one point to the feed.
- the invention now also makes it possible to provide further clamping jaws for independent further advancement, as seen further downstream in the direction of production, preferably after embossing tools and before or in a separating tool. In a basic version of the production machine, however, this only happens at a single position, preferably in an area just before the last individual tool.
- the web material finally leaves the progressive assembly as a shaped lamella web at a rear end seen in the direction of production. At the rear end, a separation sequence is preferably set up, so that there can be separated longitudinally and / or transversely depending on the production requirement.
- the manufactured slats can now be almost arbitrarily long in the direction transverse to the wavelength axes.
- the design of heat exchangers thus gains a new degree of freedom.
- the slats are provided with along a later flow direction of a first heat transfer fluid extending transformations, the production direction and the subsequent flow direction are aligned transversely to each other.
- a core of the invention is to be seen in that in a front punching sequence at least one extending in the direction of production stiffening surface instead of the otherwise regular shape, in particular instead of the otherwise molded, extending transversely to the direction of production shaft are impressed.
- stiffening surfaces distributed over the surface of the web material are embossed as contours which extend overlap in a projection across the direction of production. Consequently, at least one, at least inconsistently cooperating stiffening surface track is formed along the production direction through the following tool.
- This stiffening surface track of non-adjoining stiffening partial surfaces extends through the stiffening partial surfaces which overlap in the projection transversely to the production direction and, viewed from above, is interrupted relative to one another due to the offset of the stiffening partial surfaces.
- the passage openings in the fins for the heat exchanger tubes adjacent shaft ends are curved (drop-shaped) formed.
- the passage openings in the fins for the heat exchanger tubes are surrounded by an undeformed flat annular surface.
- pipes of oval cross-section the longitudinal axis of which is laid along the later flow direction.
- oval ring surfaces around the tubes which are embossed in the lamellae as permanent partial reinforcing surfaces, combine to form a particularly advantageously broken stiffening surface track, when the annular surfaces overlap according to further advantageous embodiments in the later flow direction of the heat transfer fluid flowing between the lamellae.
- FIG. 1 are the slats 10 of an in FIG. 1 schematically illustrated heat exchanger 1 in cross-section wave-shaped, said transformations 12 extend along an air direction L of a guided along the surface of the fins heat transfer fluid.
- the manufacturing method according to the invention for the heat exchanger 1 with laterally spaced lamellae 10 for the common ribbing of several tubes 3 is treated here with respect to the production of the lamellae 10 itself.
- the production of the lamellae 10 is carried out as a punching in progressive compound tools, wherein the web material 5, starting from its flat basic condition at a front end 20 in a street in a production direction, in this case coinciding with a punching direction S, as punching sequences of successive progressive compound tools. All punching sequences punch with a single stroke.
- the web material 5 is transported by the length of a punching sequence in the production direction (punching direction) S after each stroke.
- a contouring 14 is first embossed according to the illustrated exemplary embodiments.
- the web material is in the embodiment after FIG. 3 Seen in the direction of production at a single rear position on both sides between wave jaws to the feed used.
- the stiffening surfaces stiffen the web material 5 sustainably through the entire process, even if left and right thereof surface enlargements are created, such as waves or zigzag or other stampings.
- the stiffening surfaces according to the invention counteract uncertainties in the length behavior of the material web 5.
- the oval or round stiffening surfaces 22, 24 overlap slightly in a lateral projection transversely to the production direction S, so that at least one, at least incipiently cooperating stiffening surface track at least coarsely along the production direction S at least two of the punching sequences of progressive dies is applied spanning and in later punching sequences, for example Punching sequences 6 to 9 in FIG. 3 , consisting at least of partial stiffening surfaces.
- the deformations 12 are present in the form of sinusoidal waves as a section across the air direction L of the heat transfer fluid.
- the waves run out to the stiffening surfaces 22, 24, 26 as bulges, for example, if, after Fig. 4 , the stiffening surfaces are protected as plan-holding surfaces 27 '"of plan holders in subsequent tools during the wave forming prior to their forming.
- Piez inconvenience Planhalten can simultaneously serve as a fixation or centering of the web material to the respective follower tool
- the surface of the blade can be increased, in which instead of the waveform a zigzag pattern with triangular shapes (not shown) is punched between the stiffening surfaces 22, 24, 26.
- the following punching sequence has proven: forming plateaus as stiffening surfaces, producing the enlarged surface of the blade, producing the collar for holes for later receiving the tubes 3, making the holes themselves.
- stiffening surfaces overlap in the direction of production, so that the material tension does not lead to unwanted deformation of the punching steps and thus the punching sequence steps can no longer be precisely maintained. If the lamella changes uncontrolled in its dimension in the production direction without stiffening surface arrangement according to the invention, the following tool can destroy the previously generated deformation again.
- FIG. 4 A further advantageous embodiment of the invention is shown as a third embodiment of a manufacturing method for a lamella 10 "."
- the stiffening track is placed between the tube rows with undeformed reinforcement strips 26" preferred embodiments also with sufficient success if only every two, three or four rows of tubes such reinforcing strips 26 "'were kept free.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Optics & Photonics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Die Erfindung betrifft ein Fertigungsverfahren für das Umformen eines Bahnmaterials zu einer regelmäßig zur Oberflächenvergrößerung eines Lamellenpaketes umgeformten Lamelle (10), welche Lamellen (10) im Anschluss an die Fertigung in gewissem Abstand zueinander zur gemeinsamen Verrippung mehrerer Rohre (3) in einem Wärmeübertrager (1) angeordnet werden, wobei, dass die Lamellen (10) mit parallelen Konturlängsrichtungen quer zu einer Produktionsrichtung durch mehrere Einzelwerkzeuge eines Folgeverbunds geformt werden, von welchen Einzelwerkzeugen wenigstens eines längs der Produktionsrichtung verlaufende Versteifungsspuren einprägt, um die parallelen Konturen zumindest abschnittsweise zu unterbrechen.The invention relates to a manufacturing method for forming a web material into a lamella (10) which is regularly shaped to increase the surface area of a lamella packet, which lamellae (10) are connected at a certain distance from one another to the common ribbing of several tubes (3) in a heat exchanger (1 ), wherein that the lamellae (10) with parallel contour longitudinal directions are formed transversely to a production direction by a plurality of individual tools of a progressive composite of which individual tools at least one along the production direction stiffening tracks impresses to interrupt the parallel contours at least in sections.
Description
Die Erfindung betrifft ein Fertigungsverfahren für einen Wärmeübertrager mit im Abstand zueinander angeordneten, profilierten Lamellen zur gemeinsamen Verrippung mehrerer Rohre, der dazu bestimmt ist, ein erstes Wärmeübertragerfluid (z.B. Luft) längs der Oberfläche der Lamellen und ein zweites Wärmeübertragerfluid (z.B. Wasser) in den Rohren zu führen. Ein entsprechender Lamellenrohrwärmeübertrager ist aus
Seit Jahrzehnten hat sich die Konstruktion von aufgepressten Lamellen auf Rohren bewährt. Die Lamellen bestehen meist aus Aluminium oder aus Kupfer. Die Rohre bestehen meist aus Kupfer. Kupfer gilt für die Wasserführung als sicheres Rohrmaterial, es ist ein hervorragender Wärmeleiter, drucksicher und trotzdem leicht. Aluminium ist ebenfalls ein hervorragender Wärmeleiter und darüber hinaus auch korrosionssicher. In bekannten Verfahren werden profilierte Lamellen vom Band gestanzt und auf Rohre aufgebracht. Eine hydraulische Aufweitung sorgt für festen Sitz und somit sichere Wärmeübertragung. Die Abstände von Lamelle zu Lamelle sind entsprechend der benötigten Wärmeleistung und Geometrie der Lamelle optimiert. Es gibt zahlreiche Möglichkeiten für den problemlosen Einsatz, wie Konvektoren, Kühlregister für stille Kühlung und andere Luft/Wasser-Wärmeübertrager in der Raumlufttechnik.For decades, the construction of pressed lamellae on pipes has proven itself. The slats are usually made of aluminum or copper. The tubes are usually made of copper. Copper is considered a safe pipe material for the water supply, it is an excellent conductor of heat, pressure-resistant and nevertheless light. Aluminum is also an excellent conductor of heat and also corrosion-resistant. In known methods profiled lamellae are punched from the belt and applied to pipes. A hydraulic expansion ensures a tight fit and thus safe heat transfer. The distances from slat to slat are optimized according to the required heat output and geometry of the slat. There are many possibilities for easy use, such as convectors, Cooling coil for silent cooling and other air / water heat exchangers in room air technology.
Aus der
Die Fertigung solcher Wärmeübertrager, bei denen die Lamellen mit in Strömungsrichtung des ersten Wärmeübertragerfluids verlaufenden Umformungen versehen und bei denen die Rohre versetzt angeordnet sind, war bisher aus fertigungstechnischer Sicht problematisch. Es bleibt daher in der Lamellenfertigung bisher dabei, dass die Lamellen ihre Wellenlängsrichtung in einer Produktionsrichtung behalten.The production of such heat exchangers, in which the fins provided with running in the direction of flow of the first heat transfer fluid transformations and in which the tubes are arranged offset, was previously problematic from a production point of view. So far, it remains in the slat production thereby that the slats keep their wavelength direction in a production direction.
Diese Probleme wurden durch ein Fertigungsverfahren für eine Wärmeübertragerlamelle nach Anspruch 1, umfassend seine kennzeichnenden Merkmale, ein Fertigungsverfahren für einen Wärmeübertrager nach Anspruch 6, durch eine Lamelle nach Anspruch 9, einen Wärmeübertrager nach Anspruch 10 und / oder eine Verwendung von erfindungsgemäßen Versteifungsflächen nach Anspruch 12 beseitigt. Damit können Wärmeübertragerpakete nach bisherigem Fertigungsverfahren in Längsrichtung beliebig lang gebaut werden.These problems have been solved by a manufacturing method for a heat exchanger blade according to
Erfindungsgemäß ist zu fertigen, eine Lamelle eines Wärmeübertragers, die später in gewissem Abstand zur jeweils nächsten Lamelle parallel im Wärmeübertrager angeordnet wird, zur gemeinsamen Verrippung mehrerer Rohre. Die Lamellen werden erfindungsgemäß in einem einem Folgeverbund mit mehreren Einzelwerkzeugen umgeformt. Besonders herausfordernd ist es nun, dass der Folgeverbund ein Einformen von quer zur Produktionsrichtung verlaufenden regelmäßig wechselnden Erhebungen und Vertiefungen vorsieht, besonders bevorzugt wechselnd auf- und abfallende Wellen. Genau bei dieser Anordnung einer Wellenstruktur kommt es im Stand der Technik zu Produktionsproblemen. Der Folgeverbund formt nun zur Beherrschung von Materialspannungen erfindungsgemäß außer der regelmäßigen Lamellenstruktur auch zumindest eine Versteifungsflächenspur, die zumindest grob entlang der Produktionsrichtung verläuft. Es können im Sinne der Erfindung mehrere einzelne Versteifungsflächen eine oder mehrere Versteifungsspuren bilden, die im Fall der besonders bevorzugten mehreren Versteifungsflächen mit Unterbrechungen in Produktionsrichtung zusammenwirken. Es gelingt mithin, die Lamelle ausreichend auszusteifen, um eine passgenaue Lammelenbahnlage im Folgeverbund, bevorzugt in nächsten Einzelwerkzeugen des Folgeverbunds, und auch für nachfolgende Montageschritte zu gewährleisten.According to the invention is to manufacture a blade of a heat exchanger, which later at a certain distance from each next lamella is arranged in parallel in the heat exchanger, for common ribbing of several tubes. The slats are transformed according to the invention in a follow-on composite with several individual tools. It is now particularly challenging that the follow-on composite provides for a shaping of regularly rising elevations and depressions running transversely to the direction of production, particularly alternately rising and falling waves. Exactly with this arrangement of a wave structure, production problems occur in the prior art. The follow-on composite now forms at least one stiffening surface track, at least roughly along the production direction, for controlling material stresses according to the invention, in addition to the regular lamellar structure. For the purposes of the invention, a plurality of individual stiffening surfaces can form one or more stiffening tracks which, in the case of the particularly preferred multiple stiffening surfaces, interact with interruptions in the direction of production. Consequently, it is possible to adequately stiffen the lamella in order to ensure a tailor-made Lammelenbahn layer in the following composite, preferably in the next individual dies of the progressive composite, and also for subsequent assembly steps.
Ein Bahnmaterial tritt dazu bevorzugt von seiner flachen Grundbeschaffenheit ausgehend an einem vorderen Ende in eine Straße aus in einer Produktionsrichtung als Stanzfolgen aufeinander folgenden Einzelwerkzeugen eines Folgeverbunds ein, um in zumindest zwei solcher Einzelwerkzeugen eine Konturierung eingeprägt zu erhalten. Die Begriffe Stanzen oder Stanzfolge sollen hier für jede Form von Umformung verwendet sein, nicht ausschließlich für einen ein Material trennenden Prozess.For this purpose, a web material preferably exits from its flat basic condition at a front end into a road in a production direction as punching sequences of consecutive individual tools of a progressive composite in order to obtain contouring in at least two such individual tools. The terms punching or punching sequence are intended to be used here for any form of forming, not exclusively for a process separating a material.
Dabei wird das Bahnmaterial in Produktionsrichtung gesehen an zumindest einer Stelle zu dessen Vorschub gegriffen. Die Erfindung ermöglicht es nun auch, weiter hinten in Produktionsrichtung gesehen, bevorzugt nach Prägewerkzeugen und vor oder in einem Trennwerkzeug weitere Klemmbacken für einen unabhängigen weiteren Vortrieb vorzusehen. In einer Basisvariante der Fertigungsmaschine geschieht dies jedoch nur an einer einzigen Position, bevorzugt in einem Bereich kurz vor dem letzten Einzelwerkzeug. Das Bahnmaterial verlässt schließlich den Folgeverbund als eine geformte Lamellenbahn an einem in Produktionsrichtung gesehen hinteren Ende. Am hinteren Ende ist bevorzugt eine Trennfolge eingerichtet, sodass dort je nach Produktionsanforderung längs und/oder quer getrennt werden kann.The web material is seen in the direction of production taken at least one point to the feed. The invention now also makes it possible to provide further clamping jaws for independent further advancement, as seen further downstream in the direction of production, preferably after embossing tools and before or in a separating tool. In a basic version of the production machine, however, this only happens at a single position, preferably in an area just before the last individual tool. The web material finally leaves the progressive assembly as a shaped lamella web at a rear end seen in the direction of production. At the rear end, a separation sequence is preferably set up, so that there can be separated longitudinally and / or transversely depending on the production requirement.
Die gefertigten Lamellen können nun in Richtung quer zu den Wellenlängsachsen nahezu beliebig lang werden. Die Auslegung von Wärmeübertragern gewinnt mithin einen neuen Freiheitsgrad.The manufactured slats can now be almost arbitrarily long in the direction transverse to the wavelength axes. The design of heat exchangers thus gains a new degree of freedom.
In der Verwendung solcher Lamellen - im späteren Wärmeübertrager gedacht - könnte man es auch so ausdrücken: Die Lamellen werden mit entlang einer späteren Strömungsrichtung eines ersten Wärmeübertragerfluids verlaufenden Umformungen versehen, wobei die Produktionsrichtung und die spätere Strömungsrichtung quer zueinander ausgerichtet sind.In the use of such slats - thought in the later heat exchanger - it could also be expressed as follows: The slats are provided with along a later flow direction of a first heat transfer fluid extending transformations, the production direction and the subsequent flow direction are aligned transversely to each other.
Ein Kern der Erfindung ist dabei darin zu sehen, dass in einer vorderen Stanzfolge zumindest eine in Produktionsrichtung verlaufende Versteifungsfläche statt der ansonsten regelmäßigen Form, insbesondere statt der ansonsten eingeformten, sich quer zur Produktionsrichtung erstreckenden Welle, eingeprägt werden. Besonders bevorzugt werden über die Fläche des Bahnmaterials verteilt Versteifungsflächen als Konturen eingeprägt, die sich in einer Projektion quer zur Produktionsrichtung überschneiden. Es entsteht mithin zumindest eine, zumindest gebrochen zusammenwirkende Versteifungsflächenspur entlang der Produktionsrichtung durch das Folgewerkzeug hindurch.A core of the invention is to be seen in that in a front punching sequence at least one extending in the direction of production stiffening surface instead of the otherwise regular shape, in particular instead of the otherwise molded, extending transversely to the direction of production shaft are impressed. Particularly preferably, stiffening surfaces distributed over the surface of the web material are embossed as contours which extend overlap in a projection across the direction of production. Consequently, at least one, at least inconsistently cooperating stiffening surface track is formed along the production direction through the following tool.
Diese Versteifungsflächenspur aus nicht aneinander angrenzenden Versteifungsteilflächen verläuft durch die sich in der Projektion quer zur Produktionsrichtung überschneidenden Versteifungsteilflächen und ist - von oben betrachtet - wegen des Versatzes der Versteifungsteilflächen zueinander unterbrochen. Durch die beinahe Überschneidung oder die gänzliche Überschneidung der Versteifungsteilflächen beim Nachvollziehen der Versteifungsflächenspur in Richtung quer zur Produktionsrichtung ergibt sich somit besonders in Produktionsrichtung entgegen der ansonsten drohenden Instabilität aufgrund von Materialspannungen durch den Umformporzeß der Querwelle eine Steigerung der Steifigkeit gegenüber Biegung und Zug-/Druckbelastungen.This stiffening surface track of non-adjoining stiffening partial surfaces extends through the stiffening partial surfaces which overlap in the projection transversely to the production direction and, viewed from above, is interrupted relative to one another due to the offset of the stiffening partial surfaces. As a result of the almost overlapping or the complete overlapping of the stiffening partial surfaces when tracing the stiffening surface track in the direction transverse to the production direction, there is an increase in the rigidity against bending and tensile / compressive loads, particularly in the production direction, contrary to the otherwise impending instability due to material tensions due to the forming process of the transverse shaft.
In späteren Einzelwerkzeugen eines bevorzugten Folgeverbunds werden zumindest Teile dieser Versteifungsflächen von zumindest einem Einzelwerkzeug wiederaufgenommen, sodass um sie herum und ggf. von ihnen unabhängig verlaufend mit gesicherter Positionierung des zumindest einen Einzelwerkzeuges zum Bahnmaterial regelmäßige Umformungen einprägbar sind.In later individual tools of a preferred progressive composite, at least parts of these stiffening surfaces are resumed by at least one individual tool so that regular deformations can be imprinted around them and possibly independently of them with secured positioning of the at least one individual tool.
Vorteilhafte Ausführungsformen sind in Unteransprüchen angegeben.Advantageous embodiments are specified in subclaims.
Ausschließlich in den Ansprüchen formulierte Merkmale sind auch Teil dieser Beschreibung.Only features formulated in the claims are also part of this description.
Es ist mithin gelungen, eine Regel zu entwickeln, wie für ein sicheres wirtschaftliches Produzieren Rohrgeometrien, Rohrbeabstandungen und Lage der Rohre in ihrer Verteilung über die Lamellenfläche hinweg aufeinander abzustimmen sind, um Umformungen zur Oberflächenvergrößerung der Lamelle quer zur Produktionsrichtung einprägen zu können, ohne dass Dimensionsinstabilitäten der zunehmend verformten und unter Spannung stehenden Lamelle, insbesondere während des Transportes durch die Einzelwerkzeuge eines Folgeverbunds, im Lamellenstanzwerkzeug zu unbeabsichtigten Verformungen führen.Thus, it has been possible to develop a rule on how to harmonize pipe geometries, pipe spacings and position of the pipes in their distribution over the lamellar surface in order to be able to impress the surface enlargement of the lamella transversely to the production direction, without dimensional instabilities, for safe economic production the increasingly deformed and stressed lamella, in particular during transport through the individual tools of a progressive compound, lead to unintentional deformations in the lamella punching tool.
Vorzugsweise sind die den Durchtrittsöffnungen in den Lamellen für die Wärmeübertragerrohre benachbarten Wellenenden gewölbt (tropfenförmig) ausgebildet.Preferably, the passage openings in the fins for the heat exchanger tubes adjacent shaft ends are curved (drop-shaped) formed.
Durch die tropfenförmige Auswölbung werden zum Einen die Materialspannungen zwischen den Wellen und den Versteifungen reduziert und zum Zweiten sind damit aerodynamische Vorteil des strömenden Fluids verbunden.The drop-shaped bulge on the one hand, the material stresses between the waves and the stiffeners are reduced and the second aerodynamic advantage of the flowing fluid are connected.
Vorzugsweise sind die Durchtrittsöffnungen in den Lamellen für die Wärmeübertragerrohre von einer unverformten flachen Ringfläche umgeben. Besonders bevorzugt sind Rohre mit ovalem Querschnitt vorgesehen, dessen Längsachse entlang der späteren Strömungsrichtung gelegt ist. Dabei ergänzen sich besonders vorteilhaft ovale Ringflächen um die Rohre herum in den Lamellen eingeprägt als bleibende Teilversteifungsflächen zu einer besonders vorteilhaft gebrochenen Versteifungsflächenspur, wenn sich die Ringflächen nach weiteren vorteilhaften Ausführungsformen in späterer Strömungsrichtung des zwischen den Lamellen strömenden Wärmeübertragerfluid gesehen überschneiden.Preferably, the passage openings in the fins for the heat exchanger tubes are surrounded by an undeformed flat annular surface. Particular preference is given to pipes of oval cross-section, the longitudinal axis of which is laid along the later flow direction. In this case, oval ring surfaces around the tubes, which are embossed in the lamellae as permanent partial reinforcing surfaces, combine to form a particularly advantageously broken stiffening surface track, when the annular surfaces overlap according to further advantageous embodiments in the later flow direction of the heat transfer fluid flowing between the lamellae.
Bei einer fluchtenden Rohranordnung, bei der die Rohre nicht versetzt, sondern in Reihe angeordnet werden, ist ein wie zuvor beschriebenes Verfahren schwer anwendbar, da dann die unverformten Teilversteifungsflächen einen zu hohen Anteil an der Gesamtfläche erreichten und damit dem Ziel der Oberflächenvergrößerung zu deutlich entgegenstünden. Hierzu ist nach einer weiteren vorteilhaften Ausführungsform vorgesehen, zwischen den einzelnen Rohrreihen, oder Paaren von Rohrreihen unverformte Versteifungsstreifen als glatte Lamellenfläche quer zu den Wellen zu positionieren, um eine Formsteifigkeit der Lamelle in Produktionsrichtung sicherstellen zu können. Diese Flächen laufen parallel zum Produktionsprozess, also entlang der Produktionsrichtung, und benötigen nur eine Breite von etwa 5 mm.In an aligned tube arrangement in which the tubes are not offset, but arranged in series, a method as described above is difficult to apply, since then the undeformed partial stiffening surfaces reached a high proportion of the total area and thus would be too much contrary to the goal of surface enlargement. For this purpose, it is provided according to a further advantageous embodiment, between the individual rows of tubes, or pairs of rows of tubes to position undeformed stiffening strips as a smooth lamellar surface transverse to the waves in order to ensure a dimensional stability of the blade in the production direction can. These surfaces run parallel to the production process, ie along the production direction, and only require a width of about 5 mm.
Die Erfindung ist in den Zeichnungen der
- Fig. 1
- eine Prinzipskizze für einen mittels eines erfindungsgemäßen Verfahrens hergestellten Wärmeübertragers in perspektivischer Darstellung,
- Fig. 2
- eine Verfahrensskizze zu einem erfindungsgemäßen Fertigungsverfahren nach einem ersten Ausführungsbeispiel in Draufsicht,
- Fig. 3
- eine Verfahrensskizze zu einem erfindungsgemäßen Fertigungsverfahren nach einem zweiten Ausführungsbeispiel in Draufsicht und
- Fig. 4
- eine Verfahrensskizze zu einem erfindungsgemäßen Fertigungsverfahren nach einem dritten Ausführungsbeispiel in Draufsicht.
- Fig. 1
- a schematic diagram for a heat exchanger produced by means of a method according to the invention in a perspective view,
- Fig. 2
- 1 a process sketch of a production method according to the invention according to a first exemplary embodiment in plan view,
- Fig. 3
- a process outline of a manufacturing method according to the invention according to a second embodiment in plan view and
- Fig. 4
- a process outline of a manufacturing method according to the invention according to a third embodiment in plan view.
In
Quer zu dieser späteren Luftrichtung L erfolgt zunächst die Fertigung solcher Lamellen 10 aus einem planen Bahnmaterial 5 in einem Folgewerkzeug, wie schematisch in den
Das erfindungsgemäße Fertigungsverfahren für den Wärmeübertrager 1 mit später im Abstand zueinander angeordneten Lamellen 10 zur gemeinsamen Verrippung mehrerer Rohre 3 ist hier in Bezug auf die Herstellung der Lamellen 10 selbst behandelt. Das Herstellen der Lamellen 10 ist als ein Stanzen in Folgeverbundwerkzeugen ausgeführt, wobei das Bahnmaterial 5 von seiner flachen Grundbeschaffenheit ausgehend an einem vorderen Ende 20 in eine Straße aus in einer Produktionsrichtung, vorliegend übereinstimmend mit einer Stanzrichtung S, als Stanzfolgen aufeinander folgenden Folgeverbundwerkzeugen eintritt. Alle Stanzfolgen stanzen mit einem einzigen Hub. Das Bahnmaterial 5 wird nach jedem Hub um die Länge einer Stanzfolge in Produktionsrichtung (Stanzrichtung) S weitertransportiert. In zumindest zwei Folgeverbundwerkzeugen wird nach den dargestellten Ausführungsbeispielen zunächst eine Konturierung 14 eingeprägt. Das Bahnmaterial wird im Ausführungsbeispiel nach
Hieraus würde sich in herkömmlichen Stanzfolgen die Konsequenz ergeben, dass vorangehend eingeprägte Spannungen zu Längenänderungen des Bahnmaterials 5 während des Transports in Folgewerkzeuge und dort dann oder auf dem Weg dahin zu Fehlverformungen führen.This would result in conventional punching sequences, the consequence that previously impressed stresses lead to changes in length of the
Um das Fehlverformen zu verhindern, werden nach den dargestellten Ausführungsbeispielen im Wellenformprozess, genauer in einer vorderen Stanzfolge noch örtlich gesehen vor dem eigentlichen Wellenformen, über die Fläche des noch planen Bahnmaterials 5 verteilt Versteifungsflächen 22, 24, 26 eingeprägt, die beim weiteren Ausformen der Lamelle 10 zum Position sichern dienen. Die Versteifungsflächen steifen das Bahnmaterial 5 nachhaltig durch den gesamten Prozess aus, auch wenn links und rechts davon Oberflächenvergrößerungen angelegt sind, beispielsweise Wellen oder Zickzack- oder sonstige Einstanzungen. Insbesondere bei einem einzigen Zugangriff im hinteren Teil des Folgewerkzeugs wirken die erfindungsgemäßen Versteifungsflächen Ungewissheiten im Längenverhalten der Materialbahn 5 entgegen.In order to prevent the Fehlverformen, according to the illustrated embodiments in the waveform process, more precisely in a front punching sequence still seen locally before the actual waveforms over the surface of the still
In dargestellten Ausführungsformen der
Um die Versteifungsflächen 22, 24, 26 herum verlaufend sind die Umformungen 12 mit gesicherter Positionierung der hinteren Folgewerkzeuge zum Bahnmaterial 5 eingestanzt, was im Verständnis dieser Anmeldung als eine Formstanzung einer Einprägung entspricht. In den hierfür zuständigen Folgewerkzeugen, die nicht dargestellt sind, wird nach vorteilhaften Ausführungsformen der Erfindung darauf geachtet, dass die Umformungen 12 von den Versteifungsflächen 22, 24, 26 unabhängig verlaufend, also auch ohne ein grenzüberschreitendes Materialfließen, ausgeführt werden.Around the stiffening surfaces 22, 24, 26 extending around the
Die Umformungen 12 sind vorliegend als Wellen im Schnitt quer zur Luftrichtung L des Wärmeübertragerfluids sinusförmig ausgebildet. Die Wellen laufen zu den Versteifungsflächen 22, 24, 26 hin als Wölbungen aus, beispielsweise wenn, nach
Von dem vorderen Ende 20" ausgehend folgen in
Die Spalten zwischen den Wellenflanken solcher Lamellen 10 in derart gefertigten Wärmeübertragern 1 erzwingen ein Umströmen der bevorzugt ovalen Wärmeübertragerrohre, die besonders bevorzugt mit ihren Schmalzeiten der Strömung begegnen. Beim Überströmen von einer Welle zur nächsten ergibt sich eine Geschwindigkeitserhöhung, die zusätzlich den Wärmeübergang verbessert, aber den Druckabfall nicht wesentlich erhöht.The gaps between the corrugation flanks of
In einer nicht dargestellten vorteilhaften Ausführungsform hat sich die nachfolgende Stanzfolge bewährt: Ausformen von Plateaus als Versteifungsflächen, Herstellen der vergrößerten Oberfläche der Lamelle, Herstellen der Kragen für Löcher zur späteren Aufnahme der Rohre 3, Herstellen der Löcher selbst.In an advantageous embodiment, not shown, the following punching sequence has proven: forming plateaus as stiffening surfaces, producing the enlarged surface of the blade, producing the collar for holes for later receiving the
Auch bei dieser Ausführungsform überlappen sich in Produktionsrichtung Versteifungsflächen, sodass die Materialspannung nicht zur ungewollten Verformung der Stanzschritte führt und damit die Stanzfolgeschritte nicht mehr präzise eingehalten werden können. Ändert sich die Lamelle nämlich ohne erfindungsgemäße Versteifungsflächenanordnung unkontrolliert in Ihrer Dimension in Produktionsrichtung, kann das Folgewerkzeug die zuvor erzeugte Verformung wieder zerstören.In this embodiment too, stiffening surfaces overlap in the direction of production, so that the material tension does not lead to unwanted deformation of the punching steps and thus the punching sequence steps can no longer be precisely maintained. If the lamella changes uncontrolled in its dimension in the production direction without stiffening surface arrangement according to the invention, the following tool can destroy the previously generated deformation again.
Dank der erfindungsgemäßen Verfahrensgestaltung ist das kostengünstige Produzieren in solchen langlebigen Produktionsanlagen möglich, weil die Abstände des folgenden Bearbeitungsschrittes nun exakt eingehalten werden, was in dem Schrittverlauf Stanzfolge 5 zu Stanzfolge 6 nach
In
- 11
- WärmeübertragerHeat exchanger
- 33
- RohreTube
- 55
- Bahnmaterialsheeting
- 1010
- Lamellelamella
- 10"'10 " '
- Lamellelamella
- 1212
- Umformungentransformations
- 12"12 "
- Umformungentransformations
- 1414
- Konturierungcontouring
- 14"14 "
- Konturierungcontouring
- 1616
- Lochhole
- 16"16 "
- Lochhole
- 16"'16 " '
- Rohrlochpipe hole
- 2020
- vorderes Endefront end
- 20"20 "
- vorderes Endefront end
- 2222
- Versteifungsflächestiffening surface
- 22"22 "
- Versteifungsflächestiffening surface
- 2424
- Versteifungsflächestiffening surface
- 24"24 "
- TeilversteifungsflächePart bracing surface
- 2626
- Versteifungsflächestiffening surface
- 26"'26 " '
- Verstärkungsstreifenreinforcement strips
- 27"27 "
- PlanhaltungsflächenPlan entertainment areas
- 2828
- hinteres Enderear end
- LL
- Luftrichtungair direction
- SS
- Produktionsrichtungproduction direction
Claims (12)
dadurch gekennzeichnet, dass die Lamellen (10) mit parallelen Konturlängsrichtungen quer zu einer Produktionsrichtung durch mehrere Einzelwerkzeuge eines Folgeverbunds geformt werden, von welchen Einzelwerkzeugen wenigstens eines längs der Produktionsrichtung verlaufende Versteifungsspuren einprägt, um die parallelen Konturen zumindest abschnittsweise zu unterbrechen.Manufacturing process for the transformation of a web material into a lamella (10) regularly converted to increase the surface area of a lamella packet, which lamellae (10) are arranged in a heat exchanger (1) following production at a certain distance from each other for common ribbing of a plurality of tubes (3),
characterized in that the lamellae (10) are formed with parallel contour longitudinal directions transversely to a production direction by a plurality of individual tools of a progressive composite impressed by which individual tools at least one along the direction of production stiffening tracks to at least partially interrupt the parallel contours.
dadurch gekennzeichnet, dass ein Bahnmaterial (5) von seiner flachen Grundbeschaffenheit ausgehend an einem vorderen Ende (20) in den Folgeverbund aus in der Produktionsrichtung (S) als Stanzfolgen aufeinander folgenden Einzelwerkzeugen eintritt, in zumindest zwei der Einzelwerkzeugen eine Konturierung (14) eingeprägt erhält und das Bahnmaterial (5) den Folgeverbund als eine geformte Lamellenbahn an einem in der Produktionsrichtung (S) gesehen hinteren Ende (28) verlässt.Manufacturing method according to claim 1,
characterized in that a web material (5) starting from its flat basic condition at a front end (20) in the follow-on composite in the production direction (S) as a punching successive succession of individual tools, embossed in at least two of the individual tools contouring (14) receives and the web material (5) leaves the follow-on composite as a shaped sipe web at a rear end (28) seen in the direction of production (S).
rch gekennzeichnet, dass das Bahnmaterial in der Produktionsrichtung gesehen an zumindest einer Stelle, bevorzugt ausschließlich an einer einzigen Stelle vor dem letzten Einzelwerkzeug auf beiden Außenseiten gleichzeitig zu dessen Vorschub gegriffen wird.Manufacturing method according to one of claims 1 or 2, dadu
characterized in that the web material is seen in the direction of production at least one point, preferably exclusively at a single point before the last single tool on both outer sides simultaneously seized to the feed.
dadurch gekennzeichnet, dass in einem in Produktionsrichtung (S) gesehen vorderen Einzelwerkzeug über die Fläche des Bahnmaterials verteilt Versteifungsflächen (24) eingeprägt werden, wobei die Versteifungsflächen (24) in Produktionsrichtung (S) gesehen jeweils einen Anfang und ein Ende haben, die mithin in Produktionsrichtung (S) vorne und hinten jeweils begrenzten Versteifungsflächen (24) sich in einer seitlichen Projektion quer zur Produktionsrichtung (S) einander überschneiden, sodass solche Teilversteifungsflächen zumindest eine gebrochen zusammenwirkende Versteifungsflächenspur zumindest grob entlang der Produktionsrichtung (S) zumindest zwei der Stanzfolgen aus Folgeverbundwerkzeugen überspannend bilden.Manufacturing method according to one of the preceding claims,
characterized in that in a direction of production (S) seen front individual tool over the surface of the web material distributed stiffening surfaces (24) are embossed, wherein the stiffening surfaces (24) seen in the production direction (S) each have a beginning and an end, which consequently in Production direction (S) at the front and rear each limited stiffening surfaces (24) overlap in a lateral projection transversely to the production direction (S), so that such Teilversteifungsflächen at least coarsely cooperating stiffening surface track at least roughly along the production direction (S) spanning at least two of the punching sequences of progressive dies form.
dadurch gekennzeichnet, dass die zumindest eine Versteifungsflächenspur in der Produktionsrichtung (S) folgend hinteren Einzelwerkzeugen und/oder Montageverfahren wiederaufgenommen wird, sodass von ihnen unabhängig verlaufend mit gesicherter Positionierung der Materialbahn relativ zu den hinteren Einzelwerkzeugen oder Montagewerkzeugen weitere Umformungen (12) einprägbar oder andere Komponenten montierbar sind, insbesondere die Rohre (3).Manufacturing method according to claim 4,
characterized in that the at least one stiffening surface track is resumed in the production direction (S) following rear individual tools and / or assembly methods, so that independently of them, with secured positioning of the material web relative to the rear individual tools or assembly tools, further deformations (12) can be embossed or other components are mounted, in particular the tubes (3).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016105645.6A DE102016105645B4 (en) | 2016-03-28 | 2016-03-28 | Manufacturing process for a heat exchanger with fins on pipes and heat exchangers |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3231524A1 true EP3231524A1 (en) | 2017-10-18 |
EP3231524C0 EP3231524C0 (en) | 2023-08-16 |
EP3231524B1 EP3231524B1 (en) | 2023-08-16 |
Family
ID=58454921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17163448.8A Active EP3231524B1 (en) | 2016-03-28 | 2017-03-28 | Production method for a heat exchanger with lamellae on tubes |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3231524B1 (en) |
DE (2) | DE102016105645B4 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6466631B1 (en) * | 2018-03-13 | 2019-02-06 | 日立ジョンソンコントロールズ空調株式会社 | Heat exchanger and air conditioner equipped with the same |
DE102020212130A1 (en) | 2020-09-25 | 2022-03-31 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg | Radiator assembly for a vehicle |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3645330A (en) * | 1970-02-05 | 1972-02-29 | Mcquay Inc | Fin for a reversible heat exchanger |
EP0268831A1 (en) * | 1986-10-22 | 1988-06-01 | THERMAL-WERKE Wärme-, Kälte-, Klimatechnik GmbH | Plate fin |
US20010029767A1 (en) | 1999-12-14 | 2001-10-18 | Adams Kenneth L. | Device and method for manufacturing turbulators for use in compact heat exchangers |
US20030188852A1 (en) | 1998-04-08 | 2003-10-09 | Mamoru Yamada | Heat exchanging fin and method of manufacturing the same |
US20040261984A1 (en) * | 2003-06-25 | 2004-12-30 | Evapco International, Inc. | Fin for heat exchanger coil assembly |
US20080142201A1 (en) * | 2006-12-14 | 2008-06-19 | Evapco, Inc. | High-frequency, low-amplitude corrugated fin for heat exchanger coil assembly |
DE102010023684A1 (en) | 2010-06-14 | 2011-12-15 | Howatherm-Klimatechnik Gmbh | Lamella tube heat exchanger, lamellas provided with deformations, which run in flow direction of heat exchanger fluid and are formed as shafts, where heat exchanger fluid is guided along surface of lamellas |
-
2016
- 2016-03-28 DE DE102016105645.6A patent/DE102016105645B4/en active Active
- 2016-03-28 DE DE202016008162.5U patent/DE202016008162U1/en not_active Expired - Lifetime
-
2017
- 2017-03-28 EP EP17163448.8A patent/EP3231524B1/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3645330A (en) * | 1970-02-05 | 1972-02-29 | Mcquay Inc | Fin for a reversible heat exchanger |
EP0268831A1 (en) * | 1986-10-22 | 1988-06-01 | THERMAL-WERKE Wärme-, Kälte-, Klimatechnik GmbH | Plate fin |
US20030188852A1 (en) | 1998-04-08 | 2003-10-09 | Mamoru Yamada | Heat exchanging fin and method of manufacturing the same |
US20010029767A1 (en) | 1999-12-14 | 2001-10-18 | Adams Kenneth L. | Device and method for manufacturing turbulators for use in compact heat exchangers |
US20040261984A1 (en) * | 2003-06-25 | 2004-12-30 | Evapco International, Inc. | Fin for heat exchanger coil assembly |
US6889759B2 (en) | 2003-06-25 | 2005-05-10 | Evapco, Inc. | Fin for heat exchanger coil assembly |
US20080142201A1 (en) * | 2006-12-14 | 2008-06-19 | Evapco, Inc. | High-frequency, low-amplitude corrugated fin for heat exchanger coil assembly |
DE102010023684A1 (en) | 2010-06-14 | 2011-12-15 | Howatherm-Klimatechnik Gmbh | Lamella tube heat exchanger, lamellas provided with deformations, which run in flow direction of heat exchanger fluid and are formed as shafts, where heat exchanger fluid is guided along surface of lamellas |
Also Published As
Publication number | Publication date |
---|---|
EP3231524C0 (en) | 2023-08-16 |
DE102016105645B4 (en) | 2018-06-21 |
DE102016105645A1 (en) | 2017-09-28 |
DE202016008162U1 (en) | 2017-09-05 |
EP3231524B1 (en) | 2023-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60219308T2 (en) | SLICED RUBBER FOR HEAT EXCHANGER | |
DE69003241T2 (en) | PLATE HEAT EXCHANGER AND METHOD FOR PRODUCING THE SAME. | |
EP3359902B1 (en) | Method for manufacturing a lamella and a plate heat exchanger with a lamella manufactured by such a method | |
EP0514510B1 (en) | Method of manufacturing a heat exchanger, and device for carrying out the method | |
DE3432073A1 (en) | HEAT EXCHANGER, ESPECIALLY FOR MOTOR VEHICLES, AND DEVICE AND METHOD FOR CONNECTING ITS PIPES AND LAMPS | |
DE102006018688B4 (en) | Method for bending multiport tubes for heat exchangers | |
DE2241407B2 (en) | Method of manufacturing a heat exchanger element | |
DE102012023800A1 (en) | Heat exchanger tube, heat exchanger tube assembly and method of making same | |
DE102012023990A1 (en) | Heat exchanger tube, heat exchanger tube assembly and method of making same | |
DE4039293A1 (en) | HEAT EXCHANGER | |
EP3231524B1 (en) | Production method for a heat exchanger with lamellae on tubes | |
EP3824240B1 (en) | Heat exchanger | |
DE2705178A1 (en) | HEAT EXCHANGER | |
EP2205374B1 (en) | Process for producing a turbulence apparatus and apparatus for carrying out the process | |
DE102012023801A1 (en) | Heat exchanger tube, heat exchanger tube assembly and method of making same | |
DE2716364A1 (en) | PROCESS FOR MANUFACTURING HEAT EXCHANGERS WITH PIPES AND RADIATING SECTIONS, AND EXCHANGERS MANUFACTURED BY THE PROCESS | |
DE3209215A1 (en) | HEAT EXCHANGER ARRANGEMENT AND METHOD FOR THE PRODUCTION THEREOF | |
EP2107952B1 (en) | Device for even stretch-forming of workpieces | |
EP3746269B1 (en) | Spring arm sleeve | |
EP2030705A1 (en) | Hot forming tool | |
DE102006037302A1 (en) | Heat exchanger for car heaters has flat pipes fitted with transverse fins and which have transverse grooves, to which inner ends of fins are welded | |
DE102017112063A1 (en) | Slat, method and apparatus for producing a slat and heat exchanger | |
DE102010033468B4 (en) | heat exchanger | |
DE2602887A1 (en) | CORRUGATED SHEET AND METHOD FOR MANUFACTURING IT | |
EP3515629B1 (en) | Method and device for expanding a metal element |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20180418 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20191220 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230601 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: DE Ref legal event code: R096 Ref document number: 502017015215 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
U01 | Request for unitary effect filed |
Effective date: 20230913 |
|
U07 | Unitary effect registered |
Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI Effective date: 20231023 |
|
U79 | Intention to license declared [unitary effect] |
Effective date: 20231023 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231117 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231216 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231116 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231216 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20231117 |
|
U20 | Renewal fee paid [unitary effect] |
Year of fee payment: 8 Effective date: 20240105 |
|
U82 | Intention to license withdrawn [unitary effect] |
Effective date: 20231227 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230816 |